Hi Paul,

Well, as you know, gas would still be my first choice, but I didn't want to suggest that when you already have a motor. The YS140 probably won't fly it around like a good gas motor, but I still think the performance would be very good. If you're planning on a lot of serious 3D, I don't think this is the optimal setup, but if you just fool around with 3D and mainly do IMAC sequences, or that type of flying, then I think it probably is plenty of power.

The total weight of course will be pretty interesting since you yours is an ARC, but the one person that published the weight of his ARC, it wasn't any lighter than the ARF. If it comes out lighter than the ARF, say in the 13-13.25 lb range, it will probably fly superbly on the YS. The single elevator servo will help some.

As far as the servo question, I'm sure the Futaba 9206 would work ok if you already have one, but I'd recommend the Hitec digital 5945. It's faster and has as much static torque, but will have a bunch more holding power and it's cheaper to boot. The feedback on these has been excellent(I'm using one on my rudder on the Extra and it works great). I would definitely run 6v if you didn't plan to already.

Bill